A CT scan can evaluate for liver disease, jaundice, abdominal pain, and can determine whether cancer has spread from another part of the body. The scan can look for and bleeding in the liver and/or spleen. CT can evaluate inflammation of the pancreas and gallbladder, look for diverticulitis, polyps, and for abscess or infection. A doctor may order a CT for hematuria (blood in the urine), difficult/painful urination, bloody stools, changes in bowel habits, chronic/acute abdominal pain and/or fever, appendicitis, enlarged lymph nodes, evaluate for aneurysm, evaluate blood vessels of upper/lower extremities and head/neck for narrowing or blockage.